So basically you're learning to walk with a heavier leg?

[Very cold temperatures being a problem... and he was already not a fan of the chill and cold that winter brought. If he went along with this, he'd have to opt for the summer.]

But overall you feel more satisfied? Is it just you and Toothless?

[Being alone wasn't a problem for Eugene on account of having Jack around, but he imagined it would be more difficult with a dragon, in Hiccup's case...]